All Men Desire By Nature To Know.

There Are, Then, Three States Of Mind ... Two Vices--that Of Excess, And That Of Defect; And One Virtue--the Mean; And All These Are In A Certain Sense Opposed To One Another; For The Extremes Are Not Only Opposed To The Mean, But Also To One Another; And The Mean Is Opposed To The Extremes.

Happiness Is A State Of Activity.

For What One Has To Learn To Do, We Learn By Doing.

For Both Excessive And Insufficient Exercise Destroy One's Strength, And Both Eating And Drinking Too Much Or Too Little Destroy Health, Whereas The Right Quantity Produces, Increases And Preserves It. So It Is The Same With Temperance, Courage And The Other Virtues. This Much Then, Is Clear: In All Our Conduct It Is The Mean That Is To Be Commended.

Music Imitates (represents) The Passions Or States Of The Soul, Such As Gentleness, Anger, Courage, Temperance, And Their Opposites.